12×9×3 inch (305×230×75mm) cardboard boxes: from 31.6p each

The cheapest we found for 12×9×3 inch (305×230×75mm) cardboard boxes is 31.6p per box: 500 boxes for £158.00 delivered (single wall · standard box). Prices for this size run from 31.6p to £1.25 per box, depending on the pack size and the type of box. For a smaller order, the best price in a pack costing £50 or less is 35.1p per box (100 boxes for £35.15 delivered). Prices updated 17 October 2026.

Price per box by pack size

Darker green means better value. Hover over a price to see the total, or click it for the listing on eBay.Darker green means better value. Tap a price to see the total and the listing on eBay.

Type	5 boxes	10 boxes	20 boxes	25 boxes	50 boxes	100 boxes	200 boxes	500 boxes
single wall · standard box	£1.25	81.5p	81.2p	54.2p	41.7p	35.1p	34.2p	31.6p
single wall · postal / die-cut	–	88.5p	–	61.9p	47.6p	39.8p	34.5p	–

Pack	Single wall	Single wall die-cut
5 boxes	£1.25£6.25	–
10 boxes	81.5p£8.15	88.5p£8.85
20 boxes	81.2p£16.25	–
25 boxes	54.2p£13.55	61.9p£15.48
50 boxes	41.7p£20.85	47.6p£23.79
100 boxes	35.1p£35.15	39.8p£39.79
200 boxes	34.2p£68.50	34.5p£69.00
500 boxes	31.6p£158.00	–

Prices include delivery and can change, so check the price on eBay before you buy. How it works.

Buy more, pay less: price per box by pack size

Every price includes delivery. The green row is the lowest price per box for that type. Click a total to see the listing on eBay.

Single wall · standard box

from 31.6p each (500 boxes)

Pack	Total	Each
5 boxes	£6.25	£1.25
10 boxes	£8.15	81.5p
20 boxes	£16.25	81.2p
25 boxes	£13.55	54.2p
50 boxes	£20.85	41.7p
100 boxes	£35.15	35.1p
200 boxes	£68.50	34.2p
500 boxes	£158.00	31.6p

Single wall · postal / die-cut

from 34.5p each (200 boxes)

Pack	Total	Each
10 boxes	£8.85	88.5p
25 boxes	£15.48	61.9p
50 boxes	£23.79	47.6p
100 boxes	£39.79	39.8p
200 boxes	£69.00	34.5p

Choosing 12×9×3 inch (305×230×75mm) boxes

A 12×9×3 inch (305×230×75mm) box holds about 5.3 litres. Most sellers list the inside size, so the item you're packing needs to be a little smaller than this on every side to leave room for padding.

Single wall board suits light and medium items. Die-cut postal boxes arrive flat and fold into one piece, which makes them quick to pack.

Pack size matters. For single wall boxes, buying 500 instead of 5 takes the price from £1.25 to 31.6p per box, which is 75% less.

The prices on this page come from 4 different eBay sellers, and each one was checked against its own listing.

Compare every size and pack quantity →

Other sizes

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